DE102007060881B4 - Airbag system with controllable expansion - Google Patents
Airbag system with controllable expansion Download PDFInfo
- Publication number
- DE102007060881B4 DE102007060881B4 DE102007060881.2A DE102007060881A DE102007060881B4 DE 102007060881 B4 DE102007060881 B4 DE 102007060881B4 DE 102007060881 A DE102007060881 A DE 102007060881A DE 102007060881 B4 DE102007060881 B4 DE 102007060881B4
- Authority
- DE
- Germany
- Prior art keywords
- expansion
- diffuser
- pressure control
- outlet openings
- cushion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 210000003127 knee Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/217—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/239—Inflatable members characterised by their venting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R21/276—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow with means to vent the inflation fluid source, e.g. in case of overpressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R2021/161—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by additional means for controlling deployment trajectory
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R2021/26094—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow characterised by fluid flow controlling valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Air Bags (AREA)
Abstract
Airbagsystem mit steuerbarer Expansion, aufweisend:einen Diffusor (12), der Gaszuführöffnungen (12a), Auslassöffnungen (12b) und einen Gasgenerator (11) aufweist;ein Expansionsdrucksteuerelement (14), das in Bezug auf den Diffusor (12) bewegbar angeordnet ist und eine einzige Öffnung (14a), die mit den Gaszuführöffnungen (12a) verbunden ist, und einen Schließabschnitt (14b) aufweist, der die Auslassöffnungen (12b) öffnet/schließt; undein Führungselement (18), das mit dem Expansionsdrucksteuerelement (14) verbunden ist, ein Kissen (16) in einer vorbestimmten Richtung führt, und das Öffnen/Schließen der Auslassöffnungen (12b) durch Bewegen des Expansionsdrucksteuerelements (14) in Bezug auf den Diffusor (12) mittels einer nach dem Expandieren des Kissens (16) ausgeübten äußeren Kraft steuert,wobei der Diffusor (12) ein Zylinder ist, und die Gaszuführöffnungen (12a) axial in zwei Reihen und die Auslassöffnungen (12b) axial in einer einzigen Reihe entlang des Umfangs des Diffusors (12) angeordnet sind, undwobei zu Beginn der Expansion des Kissens (16) die Auslassöffnungen (12b) geschlossen sind, bei weiterer Expansion des Kissens (16) das Expansionsdrucksteuerelement (14) nach vorn gedreht wird und die Auslassöffnungen (12b) öffnet, bei Ausübung keiner äußeren Kraft auf das Führungselement (18) die Auslassöffnungen (12b) geöffnet bleiben, und bei Ausübung einer äußeren Kraft auf das Führungselement (18) das Expansionsdrucksteuerelement (14) nach hinten gedreht wird und die Auslassöffnungen (12b) schließt.An airbag system with controllable expansion, comprising: a diffuser (12) having gas supply openings (12a), outlet openings (12b) and a gas generator (11); an expansion pressure control element (14) which is arranged movably with respect to the diffuser (12) and a single port (14a) connected to the gas supply ports (12a) and having a closing portion (14b) that opens / closes the outlet ports (12b); anda guide member (18) connected to the expansion pressure control member (14), guides a cushion (16) in a predetermined direction, and opening / closing the outlet ports (12b) by moving the expansion pressure control member (14) with respect to the diffuser ( 12) by means of an external force exerted after the expansion of the cushion (16), the diffuser (12) being a cylinder, and the gas supply openings (12a) axially in two rows and the outlet openings (12b) axially in a single row along the Circumference of the diffuser (12) are arranged, and wherein at the beginning of the expansion of the cushion (16) the outlet openings (12b) are closed, with further expansion of the cushion (16) the expansion pressure control element (14) is rotated forward and the outlet openings (12b) opens, when no external force is exerted on the guide element (18) the outlet openings (12b) remain open, and when an external force is exerted on the guide element (18), the expansion nsdrucksteuerelement (14) is rotated backwards and the outlet openings (12b) closes.
Description
Die Erfindung betrifft ein Airbagsystem mit steuerbarer Expansion, und insbesondere ein Airbagsystem mit einem Airbag, der in einer gewünschten Position frei montiert werden kann und einen Folgeschaden an einem Baby/Kleinkind durch Steuerung des Expansionsdrucks des expandierenden Airbags verhindern kann.The present invention relates to a controllable expansion airbag system, and more particularly to an airbag system having an airbag which can be freely mounted in a desired position and can prevent consequential damage to a baby by controlling the expansion pressure of the expanding airbag.
Bei herkömmlichen Airbagsystemen, die in Fahrzeugen verwendet werden, treten Probleme bezüglich der Montageposition und der Expandierbarkeit eines Airbags innerhalb des Fahrzeuges auf. Dementsprechend ist der Airbag in einen Airbag zum Schutz des oberen Körpers eines Insassen, wie des Kopfes und der Brust, und einen Airbag zum Schutz des unteren Körpers eines Insassen, wie der Knie, geteilt.In conventional airbag systems used in vehicles, problems arise with regard to the mounting position and the expandability of an airbag within the vehicle. Accordingly, the airbag is divided into an airbag for protecting the upper body of an occupant such as the head and chest and an airbag for protecting the lower body of an occupant such as the knees.
Gemäß dieser Konfiguration muss jeder Airbag mit einem Gasgenerator und einem Kissen versehen sein, wodurch die Herstellungskosten und die Kosten und die Zeit für die Entwicklung der Airbags und deren Abstimmung erhöht werden. Ferner wird, da die Airbags separat in einer vorbestimmten Position montiert sind, ein Raumverlust in einer Baueinheit verursacht.According to this configuration, each airbag is required to be provided with an inflator and a cushion, thereby increasing the manufacturing cost and the cost and time for developing and adjusting the airbags. Further, since the air bags are separately mounted in a predetermined position, loss of space is caused in an assembly.
Insbesondere ist bei einem Fahrersitz, wo eine SBW-(Steer-By-Wire) Technik angewendet wird, da ein Bündel und eine Vielzahl von Bauelementen Räume einnehmen, die Montage eines Airbags in derselben Position wie dem Insassensitz schwierig. Daher ist es schwierig, einen ausreichenden Raum für den Airbag sicherzustellen.In particular, in a driver's seat where an SBW (steer-by-wire) technique is used, since a bundle and a plurality of components occupy spaces, it is difficult to assemble an airbag in the same position as the passenger seat. Therefore, it is difficult to secure a sufficient space for the airbag.
Ferner, da die herkömmlichen Airbags nicht mit einer Funktion zur Steuerung der Expansion eines Kissens beim Expandieren des Airbags, wenn sich ein Baby/Kleinkind auf einem Sitz befindet, versehen sind, verursacht das Kissen ernsthafte Folgeschäden am Körper des Babys/Kleinkindes.Further, since the conventional airbags are not provided with a function of controlling the expansion of a cushion when the airbag is expanded when a baby / toddler is on a seat, the cushion causes serious consequential damage to the baby / toddler's body.
Die
Die
Die
Es ist die Aufgabe der Erfindung, ein Airbagsystem zu schaffen, bei dem sowohl der obere Teil als auch der untere Teil des Körpers eines Insassen durch Steuerung der Expansion eines Kissens beim Expandieren eines Airbags während einer Kollision geschützt werden und ein Folgeschaden an einem Baby/Kleinkind infolge der Expansion des Kissens durch geeignete Steuerung des Expansionsdrucks des Kissens auf der Basis von Eigenschaften des Körpers verhindert wird.It is the object of the invention to provide an airbag system in which both the upper part and the lower part of the body of an occupant are protected by controlling the expansion of a cushion when an airbag is expanded during a collision and consequential damage to a baby / toddler due to the expansion of the cushion is prevented by appropriately controlling the expansion pressure of the cushion based on properties of the body.
Diese Aufgabe wird mit einem Airbagsystem mit den Merkmalen von Anspruch 1 gelöst. Vorteilhafte Weiterbildungen sind in den Unteransprüchen beschrieben.This object is achieved with an airbag system with the features of claim 1. Advantageous further developments are described in the subclaims.
Mit dem Airbagsystem gemäß der Erfindung ist es möglich, den gesamten Körper, einschließlich des Kopfes und der Brust zusätzlich zu den Knien eines Insassen durch Expandieren des Kissens des Airbags von der Unterseite innerhalb des Fahrzeuges nach oben wirksam zu schützen.With the airbag system according to the invention, it is possible to effectively protect the entire body including the head and chest in addition to the knees of an occupant by expanding the cushion of the airbag upward from the bottom inside the vehicle.
Ferner, da der gesamte Körper eines Insassen mittels eines einzigen Airbagsystems wirksam geschützt werden kann, ist es möglich, den Airbag in gewünschten Positionen frei zu montieren und Zeit und Kosten für die Entwicklung und die Abstimmung des Airbags zu sparen. Außerdem ist es möglich, den Raumverlust in einer Baueinheit zu reduzieren, da lediglich ein Raum zum Montieren des Airbags in einem Fahrzeug sichergestellt werden muss.Further, since the entire body of an occupant can be effectively protected by means of a single airbag system, it is possible to freely mount the airbag in desired positions and save time and costs for the development and tuning of the airbag. In addition, it is possible to reduce the loss of space in one unit because only a space for mounting the airbag in a vehicle needs to be secured.
Ferner ist es möglich, Folgeschäden bei einem Baby/Kleinkind infolge der Expansion des Kissens durch geeignete Steuerung des Expansionsdrucks des Kissens auf der Basis von Eigenschaften des Körpers des Babys/Kleinkinds zu verhindern.Further, it is possible to prevent consequential damage to a baby / toddler due to the expansion of the pillow by appropriately controlling the expansion pressure of the pillow based on properties of the body of the baby / toddler.
Die Erfindung wird mit Bezug auf die Zeichnung näher erläutert. In der Zeichnung zeigen:
-
1 eine Ansicht eines Airbagsystems mit steuerbarer Expansion gemäß einer Ausführungsform der Erfindung; -
2 eine perspektivische Explosionsansicht des Airbagsystems gemäß der Ausführungsform der Erfindung; -
3 eine Ansicht des Airbagsystems gemäß der Ausführungsform der Erfindung bei der Expansion unter einem vorbestimmten niedrigen Druck; -
4 eine Ansicht des Airbagsystems gemäß der Ausführungsform der Erfindung bei der Expansion unter einem vorbestimmten hohen Druck; und -
5 eine Ansicht des Airbagsystems gemäß der Ausführungsform der Erfindung bei vollständiger Expansion.
-
1 a view of an airbag system with controllable expansion according to an embodiment of the invention; -
2 an exploded perspective view of the airbag system according to the embodiment of the invention; -
3 a view of the airbag system according to the embodiment of the invention during expansion under a predetermined low pressure; -
4th a view of the airbag system according to the embodiment of the invention during expansion under a predetermined high pressure; and -
5 a view of the airbag system according to the embodiment of the invention with full expansion.
Wie in der Zeichnung gezeigt, weist ein Airbagsystem mit steuerbarer Expansion gemäß einer Ausführungsform der Erfindung einen Diffusor
Der Diffusor
Die Gaszuführöffnungen
Das Expansionsdrucksteuerelement
Ferner ist der Einlass des Kissens
Außerdem weist das Expansionsdrucksteuerelement
Das Führungselement
Ferner ist ein Vorsprung
Andererseits ist das Führungselement
Gemäß dieser Konfiguration ist der Einlass des Kissens
Nachfolgend wird der Betrieb des Airbagsystems mit steuerbarer Expansion gemäß der Ausführungsform der Erfindung ausführlich beschrieben.The operation of the controllable expansion airbag system according to the embodiment of the invention will now be described in detail.
Der Gasgenerator
Bei den obigen aufeinanderfolgenden Vorgängen strömt zu Beginn der Expansion des Airbags, wie in
Anschließend, da das Gas weiterhin in das Kissen
Bei diesem Vorgang werden, da das Expansionsdrucksteuerelement
Infolgedessen wird das Kissen
Wenn eine äußere Kraft auf das durch das expandierende Kissen
Demzufolge wird das Kissen
Bei den obigen aufeinanderfolgenden Expansionsvorgängen wird, da der Mittelabschnitt des Kissens
Ferner wird, wenn der Insasse ein Baby/Kleinkind ist, keine äußere Kraft auf das Führungselement
Infolgedessen bekommt das Baby/Kleinkind keinen Stoß durch sekundäres Schlagen gegen das unter hohem Druck expandierende Kissen
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2007-0099692 | 2007-10-04 | ||
| KR1020070099692A KR100857353B1 (en) | 2007-10-04 | 2007-10-04 | Deployment behavior controlled airbag device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE102007060881A1 DE102007060881A1 (en) | 2009-04-09 |
| DE102007060881B4 true DE102007060881B4 (en) | 2021-04-29 |
Family
ID=40022694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102007060881.2A Expired - Fee Related DE102007060881B4 (en) | 2007-10-04 | 2007-12-18 | Airbag system with controllable expansion |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US7571932B2 (en) |
| KR (1) | KR100857353B1 (en) |
| DE (1) | DE102007060881B4 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103786677B (en) * | 2012-10-31 | 2016-02-03 | 比亚迪股份有限公司 | A kind of inflatable seat belt system |
| DE102019112290A1 (en) * | 2019-05-10 | 2020-11-12 | Trw Automotive Gmbh | Airbag ventilation device and vehicle seat |
| KR102872955B1 (en) * | 2020-06-15 | 2025-10-16 | 현대자동차주식회사 | Air bag device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3758133A (en) * | 1970-06-04 | 1973-09-11 | Honda Motor Co Ltd | Shock absorbing air bag apparatus in a motor car |
| DE4418628A1 (en) * | 1994-05-27 | 1995-11-30 | Trw Repa Gmbh | Occupant restraint system for the driver's side in a vehicle |
| GB2338214A (en) * | 1998-06-09 | 1999-12-15 | Autoliv Dev | Air bag inflation control |
| DE10001658A1 (en) * | 1999-02-18 | 2000-09-07 | Delphi Tech Inc | Airbag module for motor vehicles has airbag housing with part formed as cover to support passenger's knees during airbag inflation |
| US6497431B1 (en) * | 1997-07-09 | 2002-12-24 | Michael R. Schramm | Adaptive restraint system |
| DE10146383A1 (en) * | 2001-09-20 | 2003-04-30 | Trw Repa Gmbh | Controlling gas generation in gas bag module, involves igniting at least one stage of gas generator for restraining action, igniting remaining stages after predetermined period |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5513877A (en) * | 1994-12-02 | 1996-05-07 | General Motors Corporation | Vehicle body/supplemental inflation restraint arrangement |
| JPH0986332A (en) * | 1995-09-22 | 1997-03-31 | Toyo Tire & Rubber Co Ltd | Air bag device for vehicle |
| US5873598A (en) | 1996-08-27 | 1999-02-23 | Toyo Tire & Rubber Co., Ltd. | Air bag device |
| JP3528607B2 (en) * | 1998-06-25 | 2004-05-17 | 三菱自動車工業株式会社 | Vehicle airbag device |
| US6371517B1 (en) * | 1999-12-28 | 2002-04-16 | Delphi Technologies, Inc. | Adaptive inflation mechanism |
| US6588793B2 (en) * | 2001-09-19 | 2003-07-08 | Autoliv Asp, Inc. | Thin airbag module design for overhead applications |
| US20080155594A1 (en) | 2005-02-03 | 2008-06-26 | Koninklijke Philips Electronics, N.V. | Faster Tunning Using Multiple Tuners Andnetworked Monitors |
| EP1834847A1 (en) | 2006-03-13 | 2007-09-19 | Dalphi Metal Espana, S.A. | Dual depth airbag modules |
-
2007
- 2007-10-04 KR KR1020070099692A patent/KR100857353B1/en not_active Expired - Fee Related
- 2007-12-18 DE DE102007060881.2A patent/DE102007060881B4/en not_active Expired - Fee Related
- 2007-12-21 US US11/963,471 patent/US7571932B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3758133A (en) * | 1970-06-04 | 1973-09-11 | Honda Motor Co Ltd | Shock absorbing air bag apparatus in a motor car |
| DE4418628A1 (en) * | 1994-05-27 | 1995-11-30 | Trw Repa Gmbh | Occupant restraint system for the driver's side in a vehicle |
| US6497431B1 (en) * | 1997-07-09 | 2002-12-24 | Michael R. Schramm | Adaptive restraint system |
| GB2338214A (en) * | 1998-06-09 | 1999-12-15 | Autoliv Dev | Air bag inflation control |
| DE10001658A1 (en) * | 1999-02-18 | 2000-09-07 | Delphi Tech Inc | Airbag module for motor vehicles has airbag housing with part formed as cover to support passenger's knees during airbag inflation |
| DE10146383A1 (en) * | 2001-09-20 | 2003-04-30 | Trw Repa Gmbh | Controlling gas generation in gas bag module, involves igniting at least one stage of gas generator for restraining action, igniting remaining stages after predetermined period |
Also Published As
| Publication number | Publication date |
|---|---|
| US7571932B2 (en) | 2009-08-11 |
| KR100857353B1 (en) | 2008-09-05 |
| DE102007060881A1 (en) | 2009-04-09 |
| US20090091108A1 (en) | 2009-04-09 |
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Effective date: 20141120 |
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| R018 | Grant decision by examination section/examining division | ||
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